Tioughnioga River at Cortland, Cortland County NY (CRTN6)
Gage Location: Cortland County, New YorkSite Location: Cortland County, New York
Latitude: 42.324Longitude: -75.772Elevation: 1084.92 ft. MSLDrainage Area: 292 Sq. Mi.
Minor Stage: 8 ft. Moderate Stage: 10 ft.Major Stage: 12.5 ft.
First Flood: 1939-02-21Last Flood: 2014-03-30 Crest: 8.53 ft.Datum change: 1963-10-01Number of Floods: 112

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1939-02-2110.454290ModerateC1 G1
1940-04-0110.975210ModerateC1 G1
1940-04-0511.586120ModerateC1 G1
1940-04-0913.339660MajorC1 G1 G3
1941-04-0612.497880ModerateC1 G1
1942-03-0910.885330ModerateC1 G1
1942-03-1711.325950ModerateC1 G1
1942-12-3113.569920MajorC1 G1
1943-03-1712.738410MajorC1 G1
1944-03-1711.225960ModerateC1 G1
1945-03-1712.287100ModerateC1 G1
1945-03-229.016660MinorC1 G1
1946-03-0810.624760ModerateC1 G1
1947-03-2510.975200ModerateC1 G1
1947-04-0712.166900ModerateC1 G1
1947-06-0311.115380ModerateC1 G1
1948-03-1710.674820ModerateC1 G1
1948-03-2012.737910MajorC1 G1
1948-03-2212.47300ModerateC1 G1
1949-01-069.083070MinorC1 G1
1950-03-2911.796320ModerateC1 G1
1950-04-0513.8210000MajorC1 G1
1950-12-04-99994400MissingC1 G1
1951-03-3111.976600ModerateC1 G1
1952-03-129.333320MinorC1 G1
1953-02-229.43390MinorC1 G1
1954-02-189.433420MinorC1 G1
1955-03-0210.934940ModerateC1 G1
1955-03-1212.777670MajorC1 G1
1956-03-0811.165420ModerateC1 G1
1956-04-0513.5410000MajorC1 G1
1957-01-2311.035240ModerateC1 G1
1958-04-0711.666170ModerateC1 G1
1959-01-2211.716250ModerateC1 G1
1959-04-0312.197050ModerateC1 G1
1960-02-1111.375720ModerateC1 G1
1960-03-3113.529980MajorC1 F2
1961-02-26138770MajorC1 G1
1962-04-019.663789MinorC1 G1
1963-03-2710.345640ModerateC1 G1
1964-03-0512.4913000ModerateG3
1968-03-248.624900Minornone
1969-04-068.424660Minornone
1970-04-038.614940Minornone
1970-04-108.955340Minornone
1971-04-149.335820Minornone
1972-04-148.194480Minornone
1972-04-188.264560Minornone
1972-06-2310.477730Moderatenone
1972-12-078.695030Minornone
1974-04-0511.119100Moderatenone
1975-02-259.946750Minornone
1975-09-268.885260Minornone
1976-02-198.584910Minornone
1976-04-169.35660Minornone
1976-10-109.165440Minornone
1977-03-1412.1211800Moderatenone
1977-03-308.584590Minornone
1977-09-219.536030Minornone
1977-10-189.666250Minornone
1978-04-029.145410Minornone
1978-04-058.935100Minornone
1979-01-028.764860Minornone
1979-03-0612.4212800Moderatenone
1980-03-2210.457730Moderatenone
1981-02-219.455920Minornone
1981-10-2812.511200Majornone
1983-04-258.224170Minornone
1983-12-1410.497810Moderatenone
1984-02-1511.058530Moderatenone
1984-04-069.45830Minornone
1986-03-1511.018900Moderatenone
1988-03-269.285640Minornone
1990-02-178.34270Minornone
1993-04-019.866400Minornone
1993-04-1112.2510400Moderatenone
1993-04-178.95050Minornone
1994-04-149.615910Minornone
1994-04-17106490Moderatenone
1996-01-2013.0211800Majornone
1996-11-0910.126670Moderatenone
1996-12-0210.457190Moderatenone
1998-01-0810.326990Moderatenone
1999-01-249.786160Minornone
2000-02-2810.968030Moderatenone
2000-05-1410.146700Moderatenone
2001-04-0910.587400Moderatenone
2001-06-248.914930Minornone
2003-03-219.335510Minornone
2003-12-128.474350Minornone
2004-03-069.195310Minornone
2004-03-288.614530Minornone
2005-01-158.494370Minornone
2005-04-0314.0714200Majornone
2006-06-2810.957620Moderatenone
2006-11-178.317620Minornone
2007-03-159.855930Minornone
2007-03-279.545810Minornone
2008-02-078.544210Minornone
2008-03-098.193840Minornone
2008-12-298.073720minornone
2009-03-108.954710Minornone
2010-01-269.014780Minornone
2010-10-0111.318230moderatenone
2011-03-1110.957620Moderatenone
2011-03-198.233380Minornone
2011-04-068.033680Minornone
2011-04-178.484150Minornone
2011-09-089.885970Minornone
2013-02-018.364020Minornone
2013-07-029.835900Minornone
2014-03-308.534200Minornone



Codes and description

C1|Crest information during this period may be incomplete and therefore was not used in frequency calculations. Some of the floods are based on current flood stage and nearby gage information.
C2|Crest information during this period looks reliable despite potential problems. This data was used in frequency calculations.
C3|Crest height estimated by the USGS.
C4|Crest height is from the National Weather Service.
C5|Crest height affected by backwater.
C6|Crest occurred at a previous flood stage that is lower than the current flood stage. The crests below the new flood stage are not used in flood frequency calculations.
C7|Crest from USGS yearly peak and/or date is different than the crest we provide. In many cases MARFC uses crest based on backwater or ice effects.
C8|Crest month or day of occurrence has been estimated by The Middle Atlantic River Forecast Center usually based on nearby gage information.
C9|Crest date (day) in the month is unknown.
F1|Flow is an estimate.
F2|Flow affected by regulation or diversion and in some cases to an unknown degree.
F3|Flow effected by snow-melt, ice jam or debris jam break up.
F4|Flow affected by dam failure.
F5|Flow - All or part of the record affected by urbanization, mining, agricultural changes, channelization or other factors.
G1|Gage height at a different site and/or datum.
G2|Gage is not an official USGS gage with crests provided by the NWS. Crest information looks unreliable and incomplete and not used in flood frequency calculations.
G3|Gage datum changed during this year.
none,No code; Good Data

Updated: 07:31 AM Dec 19, 2014